李尚鹏,王金辉,金培鹏

• 1:青海大学新型轻合金重点实验室
• 2:青海省轻金属合金及深加工工程技术研究中心

摘要(Abstract)：

使用粉末冶金法及热挤压制备了纳米金刚石(ND)增强ZK60镁基复合材料(ND/ZK60),利用热-力模拟仪Gleeble 3500测试了其在不同变形温度(150、200、300和350℃)和应变速率(1、0.1、0.01和0.001 s~(-1))下的真应力-应变曲线;使用X射线衍射仪(XRD)测试了ND/ZK60镁基复合材料在变形温度为300℃及不同应变速率下的基面织构。结果表明:ND/ZK60镁基复合材料的真应力-应变曲线在不同变形温度和应变速率下发生了4个典型的阶段,且随着变形温度的升高和应变速率的减小,加工硬化现象逐渐减弱。变形温度为300℃时,挤压态的复合材料(0002)基面织构比不同应变速率下的复合材料基面织构强,且基面织构随着应变速率的减小而逐渐减弱。

关键词(KeyWords)： 纳米金刚石;ZK60镁合金;高温压缩;织构演变

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51661028);; 青海省科技项目资助(2017-ZJ-Y17)

作者(Author): 李尚鹏,王金辉,金培鹏

DOI: 10.13289/j.issn.1009-6264.2018-0379

参考文献(References)：

• [1] Xiao P,Gao Y M,et al.Microstructure,mechanical properties and strengthening mechanisms of Mg matrix composites reinforced with in situ nanosized TiB2 particles[J].Materials Science and Engineering A,2018,710 (5):251-259.
• [2] 丁文江,靳丽,吴文祥,等.变形镁合金中的织构及其优化设计[J].中国有色金属学报,2011,21 (10):2371-2381.DING Wen-jiang,JIN Li,WU Wen-xiang,et al.Texture and texture optimization of wrought Mg alloy[J].The Chinese Journal of Nonferrous Metals,2011,21(10):2371-2381.
• [3] Turan M E,Sun Y,Akgul Y.Mechanical,tribological and corrosion properties of fullerene reinforced magnesium matrix composites fabricated by semi powder metallurgy[J].Journal of Alloys and Compounds,2018,740(5):1149-1158.
• [4] 王敏,王守仁,王砚军,等.ZK60 镁合金热压变形和退火中的组织与织构演变[J].材料热处理学报,2010,31 (6):95-101.WANG Min,WANG Shou-ren,WANG Yan-jun,et al.Evolution of microstructure and texture of ZK60 magnesium alloy during hot compression and annealing[J].Transaction of Materials and Heat Treatment,2010,31 (6):95-101.
• [5] 李淑波,郑明毅,甘为民,等.SiCW/AZ91 镁基复合材料及 AZ91镁合金的高温变形行为[J].复合材料学报,2005,22 (3):103-108.LI Shu-bo,ZHENG Ming-yi,GAN Wei-min,et al.Hot deformation behavior of SiCW/AZ91 magensium matrix composite and AZ91 alloy[J].Acta Materiae Compositae Sinica,2005,22 (3):103-108.
• [6] 王晓军.搅拌铸造SiC颗粒增强镁基复合材料高温变形行为研究[D].哈尔滨:哈尔滨工业大学,2008.WANG Xiao-jun.Study on hot deformation behavior of SiC particulate reinforced magnesium matrix momposites fabricated by stir casting[D].Harbin:Harbin Institute of Technology,2008.
• [7] 刘筱,朱必武,李落星,等.挤压态AZ31镁合金热变形过程中的孪生和织构演变[J].中国有色金属学报,2016,26 (2):288-295.LIU Xiao,ZHU Bi-wu,LI Luo-xing,et al.Twinning and texture evolution in extruded AZ31 magnesium alloy during hot deformation[J].The Chinese Journal of Nonferrous Metals,2016,26 (2):288-295.
• [8] Hu G S,Zhang D F,Dong Y F,et al.Microstructures and mechanical propertied of as-extruded and heat treated Mg-6Zn-1Mn-4Sn-1.5Nd alloy[J].Transactions of Nonferrous Metals Society of China,2015,25(5):1439-1445.
• [9] Wang T,Jiang L,Mishra R K,et al.Effect of Ca addition on the intensity of the rare earth texture component in extruded magnesium alloys[J].Metallurgical and Materials Transactions A,2014,45(10):4698-4709.
• [10] 王忠堂,严操,宋广胜,等.AZ31 镁合金压缩变形微观织构演变规律[J].稀有金属材料与工程,2012,41(2):221-225.WANG Zhong-tang,YAN Cao,SONG Guang-sheng,et al.Microtexture evolvement of AZ31 magnesium alloy during compressing[J].Rare Metal Materials and Engineering,2012,41(2):221-225.
• [11] Du X,Du D B,Wang Z H,et al.Ultra-high strengthening efficiency of grapheme nanoplatelets reinforced magnesium matrix composites[J].Materials Science and Engineering A,2018,711:633-642.
• [12] Mohamed A.Afifi,Wang Y C,et al.Characterization of precipitates in an Al-Zn-Mgalloy processed by ECAP and subsequent annealing[J].Materials Science and Engineering A,2018,712(17):146-156.
• [13] Yoo M H,Agnew S R,Morris J R,et al.Non-basal slip systems in HCP metals and alloys:source mechanisms[J].Materials Science and Engineering A,2001,319(15):87-92.
• [14] 周珊珊.SiCp/AZ91镁基复合材料及AZ91镁合金的高温变形行为[J].机械工程师,2017(8):87-91.ZHOU Shan-shan.Hot deformation behavior of SiCp/AZ91magnesium matrix composites and AZ91 magnesium alloys[J].Mechanical Engineer,2017(8):87-91.
• [15] Deng K K,Li J C,Xu F J,et al.Hot deformation behavior and processing maps of fine-grained SiCp/AZ91 composite[J].Materials and Design,2015,67(15):72-81.
• [16] Raghunath B K,Raghukandan K,Karthikeyan R,et al.Flow stress modeling of AZ91 magnesium alloys at elevated temperature[J].Journal of alloys and compounds,2011,509(15):4992-4998.
• [17] 刘勇,朱景川,王洋,等.XRD 线形傅氏分析方法研究 TA15 合金热压缩变形后的位错[J].稀有金属材料与工程,2008,37(9) 1505-1509.LIU Yong,ZHU Jing-chuan,WANG Yang,et al.Research on dislocations for hot compressively deformed TA15 alloy by X-ray diffraction method and a profile analysis Theory[J].Rare Metal Materials and Engineering,2008,37(9):1505-1509.

文章评论(Comment)：